Home / 721,129.03-1,081,695.39-294,664.86

Finding the Fourth Proportional to 721,129.03, 1,081,695.39 and 294,664.86

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Solution

The fourth proportional to 721,129.03, 1,081,695.39 and 294,664.86 is: 441,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,129.03 : 1,081,695.39 = 294,664.86 : x
  2. Step 2: Convert to fraction form
    721,129.03/1,081,695.39 = 294,664.86/x
  3. Step 3: Cross multiply
    721,129.03x = 1,081,695.39 × 294,664.86
  4. Step 4: Simplify right side
    721,129.03x = 318,737,623,423.02
  5. Step 5: Solve for x
    x = 318,737,623,423.02/721,129.03
  6. Step 6: Final answer
    x = 441,998.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.